I mean, you can make it one, or you can just ride them.

I know a guy, bikes everywhere, constantly talks about biking, forces it into every conversation, has to wear those weird spandex pants everywhere, it's his whole personality and he makes it very political.

I know another guy, bikes to work because he doesn't have a car, wears normal clothes, doesn't make it his entire personality, only mentions it when it's relevant, not political for him it is simply born out of necessity (now that you can get him political on, but that's economics not "bikes.")